Vibrating distributing-roller for printing-presses.



1. H. SCHUSSLER. VIBRATING DISTRIBUTING ROLLER FOB PRINTING PRESSES.

APPLICATION FILED AUG-I3. I9I7- 1,282,957.. Patented Oct. 29,1918.

2 SHEETS-SHEET I.

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J. H. SCHUSSLER.

VIBRATING DISTRIBUTING ROLLER FOR PRINTING PRESSES.

APPLICATION FILED AUG. I3. 1917.

1,28%,957. Patented Oct. 29, 1918.

2 SHEETS-SHEET 2.

W566?! Inc/e 71%? 70.17503 c aaan era JOHN H. SCHU S SLER, OF CHICAGO,ILLINOIS.

VIBRA'IIN'G DISTRIBUTING-ROLLEB FOR PRINTING-PRESSES.

Specification of Letters Patent.

Patented Get. 29, 19118.

Application filed August 13, 1917. Serial No. 185,888.

To all 2072 om it may concern Be it known that I, JOHN H. SCHUSSLER, acitizen of the United States, and resident of Chicago, in the county ofCook and'State of Illinois, have invented certain new and usefulImprovements in Vibrating Distributing-Rollers for Printing-Presses, ofwhich the following is a specification.

This invention relates in general toprinting presses and moreparticularly to improved means for distributing ink upon the inkingrolls of a platen press.

In order that the inking rolls of printing presses may apply ink to theprinting surface evenly and uniformly, it is desirable that means shouldbe provided for distributing the ink smoothly over the rolls. By pro--viding such ink-distributing means a higher grade of work may be doneand greater speed attainedowing to the more uniform application of theink to the printing surface.

' The main object of my invention is to imfor successful commercialoperation.

Generally speaking, these and otherobjects are accomplished by providingin a printing press the combination of an inking roll, a distributingroll engaging the surface of said inking roll, and means for yieldablyand adjustably holding said rolls in contact with each other, and novelmeans for re ciprocating the distributing roll with respect to theinking roll. V

The invention is illustrated on the accompanying sheets of drawings, inwhich:

"Figure 1 is a fragmentary side elevation of a platen printing pressembodying my invention;

V Fig. 2 is a fragmentary front elevation of the same; 7

Fig. 3 is a fragmentary detail end elevation of the two inking rolls anddistributing roll shown in accordancewith my invention and on a largerscale than shown in Fig. 1;

Figit is a fragmentary front elevation of the same;

Fig. 5 is a detail fragmentary side elevation of the single inking rollwith the distributing roll held in engagement therewith in accordancewith my invention and shown on a larger scale than shown in Fig. 1;

Fig. 6 is a fragmentary front elevation of the same; and

Fig. 7 is a sectional view taken in the plane of line 7-7 of Fig. 4.

The "arious novel features of my invention will be apparent from thefollowing description and drawings and will be particularly pointed outin the appended claims.

By referring to Figs. 1 and 2 of the drawings, it will be noted that Ihave shown a platen printing press 10 including side frame members 11and 12, at the upper end of which is supported a disk 13 having an inksupplying surface. A printing surface 14' is located below and in frontof the disk 18. A pair of inking rolls 15 is arranged to move over theinking surface of the disk 13 and also over the printing surface 14,said inkingrolls 15 being engaged by one or more sections of adistributing roll 16. I have also shown another inking roll 17 which isadapted tomove over the inking surface of the disk 13 and over theprinting surface 14. This inking roll 17 is engaged by anotherdistributing roll 18.

Hook members 19, each having oppositely arranged hooks 20 at oppositeends of the inking rolls 15, fit over the reduced end por tions of saidrolls and yieldingly press said rolls into engagement with the disk 13and printing surface 14 by the usual rod and spring mechanism 21, therod being connected to the hook member at a point 22. Similarly a hookmember 23 passes around the reduced ends of the inking roll 17 for asimilar purpose, the roll 17 being yieldingly held in contact with theinking and printing surfaces by the usual spring mechanism 24:. Thecarriage 25 is pivoted at 26in the usual manner.

The distributing roll may be in one section or be made up in twosections, as shown in Fig. 2. or if desired there may be more sections.Where there are two or more sec tions they are separated by a collar 27,which collar and also the sections are mounted over a shaft28, which isadapted to be reciprocated or vibrated axially or transversely of themachine and along the length of the inking rolls 15. The distributingroll 16 is secured to'the shaft 28. As shown in Fig. 2 of the drawings,I have shown two sections. It will be noted, that immediately to theleft of the left-hand section there is provided a collar 29 which iskeyed to the shaft 28. The left-hand section of the ink-distributingroll engages the collar 29, the intermediate collar 27 being tightlypressed between the left a nd righthand sections, and to the right ofthe righthand section of the distributing roll there is provided acollar 30 which is secured to the shaft by a set-screw. In this mannerthe sections are maintained rigid with the shaft-28. 7

It will be noted that the left-hand end of the shaft 28 is providedwitha threaded portion 31 which passes through and meshes with acooperating internal threaded portion 32 (see Fig. 7) of a bushing 33.This bushing 33 is supported in a bracket ea which in turn is secured tothe hook members 19 by set-screws 35. Between the sides 36 of thebracket 34: is secured a pin37 to which is pivoted a resilient member 38havinga semi-circular portion 39 which embraces the bushing33intermediate its side flanges 40, the free end of the resilient memberor spring 38 being secured to the opposite end of the bracket 3% by abolt 41 having an eye portion 42 which pivots on a pin 43 seoured tothebracket 34. It will be noted that the free end of the spring isdoubled back on itself at 44 and is provided with a slot 45 to permitthepassage of a bolt 4]. This bolt is provided with a nut 46 by means ofwhich the springmember 38 may be adjusted to press yieldingly thedistributing roll 16 in engagementwith the inking rolls 15 to anydesirable degree. By bending the spring back on itself as at 44,resilienc of the connection is increased.

It will be noted that lugs 47 are provided on the bracket 34 to preventlateral move ment of the resilient member 38. The semicircular portion39 of the resilient member 38 acts as a bearing for the bushing 33, andin order that the distributing roll may properly center or positionitself with respect to the inkingrolls, I have provided the side members36 of the bracket 3% with elongated slots 4:8 wherein the pin 37 mayfreely move back and forth to permit such centering action. The slot 45of the free end of the spring member 38 also permits the spring to movein a manner topermit the distributing roll properly to center itselfwith re spect to theinking rolls. It will be noted that in view'of thefact that the member 38 is resilient, the'distributing roll will bepressed into continuous engagement with the inking rolls in spite of anyirregularities there may be in the surfaces of the inking rolls and atthe same time the screw 46 may be adjusted to press the distributingroll intoiengagement with the inking rolls to any desired degree. Thenut a6 also acts be noted that the distributing roll 18 is held inengagementwith the single inking roll 17 by anarangement.similar totheone described in connection with the other figures of the drawings,the brackets 60 in this case lapping over the hooks 23 and being securedthereto by suitablescrews 151. In this case, as well as in the case ofthe arrangement disclosed in connection with the other figures of thedrawings, the distributing roll may be released by loosening the nut 46and swinging the bolt 41 beyond the free end of the spring or resilientmember 38. It will be noted that the resilientmemher 38 in Figs. 5 and 6is pivotallyniounted on a pin 52 carried by the bracket 60. It will benoted, however, that no slot is provided in the bracket for the pin 52for-the reason that the distributing roll 18 does not have to centeritself with'respect to two inking rolls. Otherwise the arrangement issubstantially the same as disclosed in the other figures ofthe drawings;a

It is wellunderstood thatthe inking rolls are first moved over the'inking surface of the disk 13 and then over the printing surface 14?and as a result of this movement the rolls are caused to rotate. Thedistributing roll is caused to rotate by its engagement with the inkingrolls, andin view of the fact that the distributing roll is each case issecured to its shaft, which is'provided with a threaded portion 31, thedistributing roll is caused to vibrate or reciprocate axially orlongitudinally with respect to the inking rolls. Normally thedistributing roll 16, and therefore its shaft 28, rotates independentlyof the threaded bushing 33. However, if the inking rolls and thecooperating distributing roll 16 are rotated beyonda predeterminedamount the bushing will be caused to rotate with the distributing roll,the same being'permitted in view of the fact that the resilient member38 engages the bushing with only suflicient force to normallyfricti'onally hold the bushinggthat is to say, when the limits ofrotation of the rolls has not beenreached the bushing 33 is held againstrotation by the resilientmember 38, but when the distributing rollis rotated beyond its normal limits thebushing 33 is permittedfto rotate withthe'distributing roll.

It will be noted that the side flanges 40 of the bushing 33 are providedwith cam por tions '53 and 54 which terminate in stops 55 and 56respectively. It will also be noted that the outer end of the shaft 28is provided with a. pin 57 which is adapted to cooperate with the stopmember 55 to limit in 7 dependent movement of the distributing cooperatewith the other stop 56 to limit in-" dependent movement of thedistributing roll and its shaft 28 in an opposite direction. In otherwords, when the pin 57 passes into engagement with its correspondingstop 55 it causes the bushing 33 to rotate with the distributing roll inone direction, and when the other pin 58 passes into engagement with itscorresponding stop 56 it causes the bushing 33to move in the oppositedirection with the distributing roll, such movement being permitted dueto the frictional engagement be tween the bushing 38 and thesemi-circular portion of the spring or resilient member 88. In thismanner the distributing roll is permitted freely to reciprocate orvibrate back and forth longitudinally with respect to the inking rolls,andif the inking rolls are run beyond certain predeterminedlimits ineither direction the distributing roll maycontinue to rotate and therebyeliminate any disastrous results which otherwise might occur.

It is apparent that there may be various modifications of the precisearrangement herein particularly shown and described, and it is myintention to cover all such modifica tions which do not involve adeparture from the spirit andscope of the invention as set forth in thefollowing claims.

I claim:

1. In a printing press, the combination of an inking roll, adistributingroll engaging thesurface of said inking roll, and aresilient strip forming a portion of the roll journal support foryieldingly holding said rolls in engagement with each other, the ends ofsaid strip being restrained while permitting slight bodily movement ofsaid strip.

2. In a printing press, the combination of an inking roll, adistributing roll engaging the surface of said inking roll, a shaft towhich said distributing roll is secured and having a threaded portion, athreaded bushing cooperating with the threaded portion of said shaftwhereby the distributing roll is caused to move axially, and a resilientstrip forming a support for said bushing whereby said distributing rollis yieldingly held in engagement with said inking roll.

3. In a printing press, the combination of an inking roll, adistributing roll engaging the surface of said inking roll, a. shaft towhich said distributing roll is secured and having a threaded portion, athreaded bushing cooperatingwith the threaded portion of saidshaftwhereby the distributing roll is caused to move axially, and aresilient strip overlying said bushing and forming a support thereforand associated with said bushing to hold the same frictionally, wherebythe distributing roll may have an axial movement therein.

4:- In printing press, the combination of an inking roll, a distributingroll engaging the surface of said inking roll, a shaft to which saiddistributing roll is secured and having a threaded portion, a threadedbushing cooperating with the threaded portion of said shaft whereby thedistrilniting roll is caused to move axially, a resilient strip forminga bearing support and associated with said bushing to hold the samefrictionally whereby the distributing roll may have an axial movementtherein, and means whereby said bushing may rotate with saiddistributing roll under certain conditions.

5. In a printing press, the combination of an inking roll, adistributing roll, and a resilient strip forming a bearing and adaptedfor holdin said distributing roll in engagement wit1 said inking roll,said strip being mounted with its ends restrained while permittingbodily movement thereof.

6. In a printing press, the combination of an inking roll, adistributing roll, a resilient strip forming a bearing for holding saiddistributing roll in engagement with said inking roll, and means foradjusting said resilient strip for varying the degree of pressure withwhich said rolls engage each other.

7. In a printing press, the combination of an inking roll, adistributing roll associated therewith, a shaft upon which saiddistributing roll is mounted, abracket, and a member pivotally mountedin said bracket and serving as one portion of a bearing for removablyand yieldingly supporting said shaft.

8. In a printing press, the combination of an inking roll, adistributing roll, a shaft upon which said distributing roll is mounted,a bracket, and a resilient member pivotally mounted in said bracket forsupporting said distributing roll and yieldingly pressing saiddistributing roll into engagement with said inking roll.

9. In a printing press, the combination of an inking roll, adistributing roll, a shaft upon which said distributing roll is mounted,a bracket, a resilient member pivotally mounted in said bracket foryieldingly pressing said distributing roll into engage ment with saidinking roll, and means associated with said bracket and resilient memher for varying the pressure with which said rolls engage each other.

10. In a printing press, the combination of an inking roll, adistributing roll, a shaft upon which said distributing roll is mounted,a supporting member havinga portion for supporting said distributingroll, a member pivotally connected to said supporting member andremovably suppijn'tin'g said distributing roll in engagement with saidinking roll, said member having a slotted portion, and a securing membermovably mounted in said slotted portion to secure said member in a givenposition.

11. In a printing press,'tho oonibiinition of an inking roll, adistributing roll engaging the surface of said inking roll, a sha-t tupon which said distributing roll is mounted, a supporting member havingan elongated slot therein, a pin mounted for movement/in said slot, anda member pivotally mounted on said pin and supporting said shaft,whereby the distributing roll is supported and is permitted to take agiven position with respect to said inking, roll.

12. In a printing press, the combination of an inking roll, adistributing roll engaging the same and having a threaded shaft portion,and a threaded bushing associated with the threaded shaft portionwhereby the distributing roll may be given an axial movement, saidbushing and shaft having cooperating portions whereby said bushing mayrotate with said distributing 1e11, said cooperating portions includinga cam, and a flexllblestrip forming a support for the threaded bushing.

13. In a printing press, the combination oi an inking roll. adistributing;- roll engaging the sameand having a threat led shaftportion, and a threaded bushing associated in opposite directions withsaid distributing roll, and a flexible strip forming a support for thethreaded bushing.

Signed at Chicago, Illinois, this 6th day of August, A. D. 1917. r 7

JOHN njsonussmca.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, 17,0.

